CPU Installation Facts

CPU Installation Facts

Processors require some form of heat dissipation system to function properly. Without a heat dissipation system, a processor will overheat and burn out in less than a minute. Most modern CPUs require a heat sink and a fan as shown in the following picture:

 

You should also know these facts about processor installation:

• To upgrade a processor, make sure the motherboard will support a processor with faster clock cycles.
• Make sure pin 1 on the CPU corresponds to pin 1 on the system board.
• Make sure the voltage and clock cycles on the system board are correct.
• CPU internal voltage is 1 to 5 volts, and it is always lower than external voltage.
• Generally, CPU voltage lowers with time. (The Pentium 4 is 1.525 volts.) Lower voltage is preferred.
• Level III cache is located on the motherboard. It is a conduit between RAM and level II cache.
• A Voltage Regulator Module (VRM) sets the appropriate voltage output level for a CPU.
• If the original VRM doesn't work with a new processor, you probably need to replace the entire motherboard.
• Older CPUs required you to set jumpers on the motherboard to specify a correct voltage or clock multiplier for the CPU. New motherboards require you to make settings in the CMOS.
• When installing a heat sink, use thermal grease or a thermal pad between the processor die and the heat sink.